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David Lesher David Lesher is offline
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Default 3 phase electrical receptacle on fire, explosions

Jim Stewart writes:


Sounds dubious that the busbars "slid down". Busbars have to
be bolted solid in numerous locations to withstand the forces
generated by the magnetic fields created from a short circuit.
More likely would be a piece of wire or other debris fell
across them.


I only know what I was told by Bill, years later. [ISTM this
happened in the early 1970's.] They had all three starters
racked out and no reason to suspect the shipping damage.

Unlike some, I'm not willing to attack someone as incompetent
when I am not able to see the evidence myself. Bill had been a
senior CPO in WWII, and was not just skilled but also cautious.
{We worked in the products pipeline environment; not one to
encourage swaggering & risk-taking.}

I mention the case merely as an example of why remote operation
of a main is not a half-bad idea.


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